He became actively involved in the politics of the Gold Coast upon his return from the congress. He spoke against British imperialism and was seen in most political activities in the colony. When Kwame Nkrumah formed the Convention Peoples Party on 12 June 1949, He joined the party and was member of the first working committee of the convention. He chaired the first meeting of the committee and proposed the use of the red rooster—the symbol of Labadi, his native town—as the symbol of the newly formed political party.
In December 1949, he co-founded the Ghana Farmer's Congress with John Ayew. The association served as the farmers' wing of C.P.P. and was used to mobilize funds to support the activities of the party. He contested for Akim Abuakwa Central seat in 1951 Gold Coast general election but lost to J.B Danquah of the United Gold Coast Convention. Nikoi was appointed as a member of the Cocoa Marketing Board by Nkrumah but resigned due to a disagreement on establishing a cocoa purchasing monopoly. This disagreement led to him being expelled from the C.P.P.[6]
When the Ga Shifimo Kpee was created to protect the interest of the Ga people, Nikoi, and Dzenzle Dzewu was chosen to lead the new movement. In 1952, Nikoi together with other opposition parties formed the Ghana Congress Party, led by Kofi Abrefa Busia.[7] He contested in the 1954 Gold Coast general election for the newly created Akim Abuakwa East constituency, but lost to Kwaku Amoah-Awuah of the C.P.P.[8]
Detention and death
Nikoi spent time in detention due to his political activities. In 1950, he was detained with other leading members of the C.P.P. by the colonial authority over their involvement in the Positive Action campaign, led by Nkrumah. He was again arrested and imprisoned by Nkrumah under the Preventive Detention Act in 1960.[9] After a year in detention he was released due to his ill health. He fled to Nigeria to escape being detained again.[citation needed]
^Garvey, Marcus (23 August 2006). The Marcus Garvey and Universal Negro Improvement Association Papers, Vol. X: Africa for the Africans, 1923–1945. University of California Press.
^Garvey, Marcus (1995). The Marcus Garvey and Universal Negro Improvement Association Papers, Vol. IX: Africa for the Africans June 1921-December 1922. University of California Press. p. 396.
^Adi, Hakim; Sherwood, Marika (1995). The 1945 Manchester Pan-African Congress Revisited. New Beacon Books. pp. 80, 120.
^Du Bois, W. E. B. (2014). The World and Africa and Color and Democracy. Oxford University Press. p. 343.
^Langley, J. Ayodele (1973). Pan-Africanism and Nationalism in West Africa, 1900-1945: A Study in Ideology and Social Classes. Clarendon Press. pp. 351, 352.
^Rabinowitz, Beth (2018). Coups, Rivals, and the Modern State. Cambridge University Press. pp. 82, 309.
^Coleman, James Smoot; Rosberg, Carl Gustav (1966). Political Parties and National Integration in Tropical Africa. University of California Press.